The Husqvarna 3120 XP takes the Husqvarna H64 chain loop 501 84 31-84 (84 drive links, 70 cm bar) as its chain; Australian sellers list it from A$68.00 as of 30 October 2026. Fitment confirmed against the manufacturer's compatibility list.

Your chainsaw
Husqvarna 3120 XP
Chainsaw
Confirmed against Husqvarna's listConfirmed against Husqvarna's own compatibility list
Not yours? Change
Takes the 501 84 31-84 chain
H64 chain loop 501 84 31-84 (84 drive links, 70 cm bar) · check the code on your old part before ordering.
Husqvarna Australia sells the 3120 XP with bars from 60 to 105 cm (.404", 1.6 mm). Husqvarna gives 84 drive links for 70 cm and 104 for 90 cm.

Your chainsaw
Chainsaw
Confirmed against Husqvarna's listConfirmed against Husqvarna's own compatibility list

Takes the 501 84 31-84
Chain · check the code on your old part.
Husqvarna Australia sells the 3120 XP with bars from 60 to 105 cm (.404", 1.6 mm). Husqvarna gives 84 drive links for 70 cm and 104 for 90 cm.
Other Husqvarna chainsaws and their chains and parts
The 501 84 31-84 fits the 3120 XP only. These Husqvarna models take a different chain:
GenuineGenuine Husqvarna
$68.00
Husqvarna Australia · 30 OctLowest genuine · Husqvarna Australia · checked 30 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Husqvarna. Compatible: another brand.Genuine is made by Husqvarna. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $68.00
Husqvarna Australia. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
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AUD, before delivery. Each price shows when it was checked.
Opens Husqvarna Australia in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when the cutting teeth are worn down to 4 mm (5/32 in), Husqvarna says; sharpen them when the chain cuts poorly.
After replacing: No reset needed. Check the chain tension often until a new chain has run in, Husqvarna says.
How to change the chain in your Husqvarna 3120 XP
Watch the guide or follow the steps.
- 1Stop the saw (on a battery saw, take the battery out) and put on protective gloves.
- 2Remove the bar nuts and the clutch cover, and slacken the chain tensioning screw.
- 3Take off the old chain. Lift the new chain over the drive sprocket and into the bar groove, starting at the top edge of the bar, with the cutter edges facing forward on the top of the bar.
- 4Refit the clutch cover with the chain adjuster pin in the hole in the bar, and tighten the bar nuts finger-tight.
- 5Turn the tensioning screw clockwise until the chain does not hang below the bar but still turns easily by hand.
- 6Hold up the nose of the bar and tighten the bar nuts with the combination wrench. Check the tension often until the new chain has run in.
Every number this part goes by
- Retail name:
- 501 84 31-84
- Retail name:
- 501-84-31-84
- Retail name:
- 501843184
- Retail name:
- H64 84
Sellers list any of these; they are the same part.
About your Husqvarna 3120 XP

Husqvarna chainsaw — Professional chainsaws. Its chain is the H64 chain loop 501 84 31-84 (84 drive links, 70 cm bar), part 501 84 31-84.
Other chains the maker lists for this chainsaw: Husqvarna H64 chain loop 501 84 31-04 (104 drive links, 90 cm bar). With a 90 cm (36 in) bar: 104 drive links.
Where the model number is: The model is on the rating plate on the saw's housing (STIHL MS 170, Husqvarna 135 Mark II, Ryobi OCS1830BL). The chain's code is stamped on the drive links or printed on its box, and the bar length is on the bar.
Fits this Husqvarna model
Husqvarna1 model
Husqvarna Australia sells the 3120 XP with bars from 60 to 105 cm (.404", 1.6 mm). Husqvarna gives 84 drive links for 70 cm and 104 for 90 cm.
Common questions
- Which chain fits the Husqvarna 3120 XP?
- The Husqvarna 3120 XP takes the Husqvarna H64 chain loop 501 84 31-84 (84 drive links, 70 cm bar). Husqvarna Australia sells the 3120 XP with bars from 60 to 105 cm (.404", 1.6 mm). Husqvarna gives 84 drive links for 70 cm and 104 for 90 cm.
- Where can I buy the 501 84 31-84 in Australia?
- We track 1 Australian seller for the 501 84 31-84; the lowest listed price when we last checked was A$68.00 at Husqvarna Australia. Prices are re-checked daily and dated on this page.
- How do I fit the 501 84 31-84 in a Husqvarna 3120 XP?
- 6 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A blunt or stretched chain cuts slowly, throws dust instead of chips, and makes the saw harder to control.
- Is there anything to reset afterwards?
- No reset needed. Check the chain tension often until a new chain has run in, Husqvarna says.
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